Machine for manufacturing rings pr sections of turbine blades.



No. 666,283. Patented Ian. 22, |90I. C. A. PARSONS, G. G. STONEY' & H. F. FULLAGAR.

MACHINE FOR MANUFACTURING RINGS 0R SECTIUNS 0F TURBINE BLADES.

' (Application med ontu so, moo.)

(No Model.) 4 Sheets-Sheef 2,.`

H llllllllilll me Nonms mins co.. mofoum.. wurgmm'on, D. c.

u. 666,283. y Patented 1an. 22, 190|. .6. A. PAnsons, 6. 6. sToNEY & H. F. FuLLAaAn.

MACHINE FOR MANUFACTURING RINGSA 0B SECTIONS 0F TURBINE BLADES, (Application med ont s0, 19oo.)

m: Ncmms mins co. Puo'murno., wAsmwuTon, n4 c- Patented Ian. 22, |90I.

FULLAGAR.

C. A. PARSONS, G. G. STUNEY &. H. F. MACHINE FUN MANUFACTURING RINGS 0R SECTIONS 0F TURBINE BLADES.

(Application med occ. so, 1900.) (No Nudel.)

4 Sheng-Sheet 4.

H: Nonms PETERS cu,vno1oL|mo wAsHmumN D c FFICE.

CHARLES A. PARSONS, GEORGE GERALD STONEY, AND HUGH F. FULLAGAR,

OF NEVVOASTLE-UPON-TYNE, ENGLAND.

MACHINE FOR MANUFACTURING RINGS R SECTIONS 0F TURBINE BLADES.

Y forming part of Letters Patent No. 666,283, dated January 22, 1901.

Application led October' 30, 1900. Serial No. 34.906. l(No model.)

To {LZ/f whom zit muy concern: ried by means of change-wheels operated by Be it known that we, CHARLES ALGERNON ratchet-gear. The angle is that required be- PARSONS and GEORGE GERALD STONEY, subtween two consecutive blades, and it is prefjects of the Queen oi Great Britain and. Ireerably made an exact divisor of two right an- 5 land, and HUGH FRANCIS; FULLAGAR, all recles. Above the table is a sliding` block t, sidingl at lle-anun vforlzs, Newcastle-uponwhich receives a vertical movement from a rl`yne, county of Northumberland, Eng-land, crank r on a shaft q by means of a connectllave invented a certain new and useful Maing-rod s. Suspended at one end from the chine for ilianu'facturinel Rings or Sectors of slide-block z5 and at the other from the frame 6o ic Turbine Blades, (for which we have made apof the machine is a frame or casting' 7e, carplication for Leiters Patent in Great Britain, rying a cutter-spindle Q9, rotated by a belt- No. 16,284, bearing` date August l0, 1899,) of driven pulley :11. The cutter Z is' carried in which the follorI'ing is a specification. the slide-block end of the said cutter-spindle.

This invention relates to mechanism for One cutter only is shown. 15 producingmetalringsofblades forsteam-tur- 16 is the disk having,T concentric grooves, bines. which disk carries the strip a and is mounted 'lhe object oi the invention is to provide a on the rotated table 1U. The cutter-spindle machine for simultaneously cutting` the frame k is pivoted from the main frame of notches in shrouds and closing in the blades the machine at m, and it is suspended from 7o zo of steam-turllines. the sliding` block t by a pin z, which is free 'lhe invention consists in a machine to be to move in a slot in the end of the cutterhereinall'er described. spindle frame. The cutter-spindle frame is Referring' to the accom panyinp; four sheets thrust down on the pin z by the springof d rawings, Figure l is a side elevation of a pressed plunger l, carried, With its spring 2, z5 machineforcutting'the notchesin theshrouds in the slide-block t. At each descent of the and closing in the blades. The elevation is slide-blockzf the cutter Z cuts a tooth or notch taken looking in the direction of the arrow 3. in the strip a. The cutter acts in an ap- Fin/1S. Fig. 2 is a detail View corresponding proximately radial position, and the table lo Eig. l. Eig. 3 is a plan of the machine. can be moved transversely to bring any part 8o go Fie; lis a 'front elevation. Fig. 5 is a side of its diameter under the cutter. Attached elevation looking' in the direction of the arto the sliding block in front of the cutter is row 4f, Fig. 3; and Fig. is a detail View of a punch tt, suitably shaped in front to close the device for adjusting` the angular movedown a tooth upon a blade. The blades are ment of the table which determines the pitch placed in position in the notches by hand, S5 ;5 of the blades. and the punch u on descending closes over The metal to be operated upon maybe preeach tooth in succession, and thus secures pared as follows: Metal strips of suitable secthe blades one by one. Meantime the notches tion are bent to the desired radius, cut accuare cut one by one a few teeth before the rately to semicircles or sectors, and placed in punch operates, and so the blades are accu- .o concentricgroovesinametaldisk. The disk rately spaced and fixed in the strip. The is placed in a suitable lathe, and the edges of `stroke of the slide-block punch and cutter is the strips are machined true, and then they adjusted, by means of the eccentric-block 3, are removed and replaced,with the true edges surrounding' the crank-pin, to be either indownwarthin the grooves. The disk,\vith the creased or diminished to suit the dimensions .5 strips, is then taken to the special machine of the blades and shrouds to be operated on. illustrated, which, however, is shown for sim- The eccentric-block 3 is rotated within the plicity as adapted to deal with one shroud connecting-rod s and fixed in any desired poonly. sition to produce the required length of throw.

The machine consists, essentially, of a cir- The spring,` 2 serves as a relief-spring, Which Ioo o cular table w, rotated at regular intervals yields if the cutter l meets with an obstructhrough a small angle, which angle can be vation. The pin e then moves down in the slot shown, and so no damage is done. A small crank o is provided with links n, which suspend the cutter-spindle frame 7c at the point 4. The crank and links serve to hold the cutter Z out of action when desired. Handles 5 (shown in dotted lines at Fig. 1 and in detail in Fig. 2) are provided to operate the crank and links. The crank-pin 0 works in slots in the link n to allow freedom of movement of the frame k.

The punch u has independent adjustment vertically, horizontally, and about a vertical axis. It is also arranged to pivot to the block t at the pin G to enable it to be swung ont of action as required.

The shaft q in Fig. 3 operates the rollerlever 9 by means of a cam. This lever is fixed at the top of a vertical shaft 7, and the lever 8, Fig. 5, is fixed at the bottom. The shaft is pulled in one direction by the spring 14, Fig. 6, which acts on the lever 13, and the position of the shaft at one extreme ot' its angular motion is adjusted by the screw 15. The position of this screw determines the stroke given to the pawl-and-ratchet device 11. The pawl and ratchet is actuated from the lever S by the rod 10. The ratchet-wheel actuates the change-wheels 12, and so rotates the table w through the desired angle. The angle of rotation is adjusted by varying the change-Wheels and also by varying the pawlstroke by adjusting the position of the screw 15. For blade-rings with two or more shrouds the machine is provided with a corresponding number of cutters and punches. The punches may be mounted upon saddles on a transverse slide and worked by eccentrics or cams from a common spindle.

The cutters may be given a horizontal instead of a vertical movement to enable separate cutters to cut teeth in shronds placed close together; but in all modications the main features are as hereinbefore described, and illustrated in the drawings. By this method of cutting and closing inaccuracy produced by creeping or stretching during cutting or closing is prevented, and t-he circles or sectors of blades produced have accuratelypitched openings and a determined Width of opening.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is.-a

1. Mechanism for simultaneously cutting metallic shrouds and closing teeth upon blades,comprising a machine-frame, drivingshaft, rotated table, sliding block, means for varying the travel of said block, oscillated cutter and reciprocating closing punch, substantially as described.

2. Mechanism for simultaneously cutting metallic shrouds and closing teeth upon blades, comprising: a machine-frame-driving shaft, rotated table, sliding block, means for varying the travel of said block, adjustable closing punch pivotally attached to said block, a revolving spindle carrying suitable cutter within an oscillated spindle-frame,

spring-actuated plunger within said sliding block adapted to depress said cutter, means for varying the cutter depression, said cutter being adapted to form a notch simultaneously with the closing in of a tooth by said punch, the position ot' such notch being somewhat in advance of the tooth closed in substantially as described.

3. Mechanism for simultaneously cutting metallic shrouds and closing teeth upon blades comprising a machine-frame, sliding block, rotated table, driving-shaft with driving-pulley, cam, and crank on said shaft, an eccentric adapted to vary the travel of said block, a shaft carrying a cam-lever, springactuated lever and lever attached to means for rotating the table, an oscillated cutter and reciprocated closing punch, substantially as described.

In Witness whereof we have hereunto set our hands in the presence of two witnesses.

CHARLES A. PARSONS. GEORGE GERALD STONEY. HUGH F. FULLAGAR.

Witnesses to the signature of C. A. Parsons:

GEORGE GREY, WILLIAM DAGGETT. Witnesses to the signatures of G. G. Stoney and H. F. Fullagar:

WILLIAM DAGGETT, WM. GILHESPY. 

